Rube Goldberg’s Foolish Questions postcards were a huge hit, but he also produced a set under the running title The Ancient Order of the Glass House. These were issued by the same company that did his Foolish Questions cards, which offers only their logo, intertwined initials B and S, as identification (Barton Spooner?). While the Foolish Questions cards were series 213, these were series 212, presumably meaning they were issued earlier. This particular example was postally used in 1910.
By the way, I just stumbled upon Paul Tumey’s essay about Goldberg’s Foolish Questions. Recommended reading!